BAKNBLU

My '12 Sport FWD with 4700 miles went from initially: 25,7 down to 20.4 avg. Last 4 fuel ups have seen 17.2, 16.8, 16.4, and now 16.0. We have seen mid 90's to temps in the 100's during that period but still shouldn't be this bad. BTW.. I drive like a grandma.

On a naturally aspirated 1.5 liter engine 120whp. 3HP increase = 2.5%. On a sport that would = 5 hp. which leads me to believe their 7-10HP gains from other similar sized engines on their website.

Underdriven 10%

The pulley test is from a Lightweight Crank Pulley for a 1.5l Toyota Yaris ($118). V6 engines averaged between 7-10 HP. Sorry about the chart: Shows 3 HP gain

From their website: "Normally, underdrive pulleys like the units found at NonStopTuning will increase engine output by 8 to 15 horsepower! This increase results in quarter-mile time improvements of .2 to .25 seconds, easily making this modification one of the best "bang for your buck" modifications for any sport compact car or truck. Another great benefit in replacing factory pulleys with underdrive units is reduced weight. Factory units, also referred to as OEM, are generally constructed from steel or cast iron. Pulley systems like those found at NST are constructed of aircraft quality aluminum, making them extremely durable while at the same time much lighter than their steel counterparts. This weight reduction results in less rotating mass on the engine's crankshaft which drastically increases the engine's ability to rev up to speed more quickly."

I just picked up my '12 Sport and contacted NST( www.nonstoptuning.com ) regarding producing underdrive pulleys for the Sport and they said if we could gain interest on the Forum then they will look at doing it. So how many would be interested?